Correct Answer: A

Rationale: The correct answer is A. Positive urine glucose and acetone could indicate gestational diabetes or preeclampsia, both of which are complications. Choice B, pedal edema, is common in pregnancy but may also be a sign of preeclampsia if severe. Choice C, an increase in vaginal discharge, is a normal finding in pregnancy due to hormonal changes. Choice D, pressure against the diaphragm when the baby moves, is a normal sensation due to the growing uterus displacing abdominal contents.

Correct Answer: C

Rationale: The best intervention for a client with dementia who frequently attempts to get out of bed unsupervised is to use a bed exit alarm system (Choice C). A bed exit alarm can alert staff when the client tries to leave the bed, helping to prevent falls. Using restraints (Choice A) is not recommended as it can lead to physical and psychological harm. While having family members present (Choice B) can be beneficial, it may not be feasible at all times. Keeping the client's room dark and quiet (Choice D) may not address the immediate safety concern of the client attempting to get out of bed.

Correct Answer: A

Rationale: The correct technique for obtaining a blood specimen from a central venous line is to use sterile gloves and discard the first 10 mL of blood. This practice helps ensure that the blood sample collected is not contaminated. Choice B is incorrect because flushing the line with heparin before drawing the specimen can contaminate the sample. Choice C is incorrect as administering heparin before drawing the specimen can affect the accuracy of the blood sample. Choice D is incorrect as using non-sterile gloves increases the risk of contamination, which is not recommended when obtaining a blood specimen from a central venous line.

Correct Answer: A

Rationale: Using a bed exit alarm system is crucial in minimizing the risk of injury for a client with dementia. This intervention helps alert staff when the client is attempting to leave the bed, reducing the chances of falls. Raising all four side rails while the client is in bed (Choice B) can lead to restraint-related issues and is not recommended unless necessary for safety reasons. Applying a soft wrist restraint (Choice C) is generally not the first choice in managing clients with dementia due to the risk of complications and loss of mobility. Dimming the lights in the client's room (Choice D) may not directly address the risk of injury associated with dementia and may even increase the risk of falls due to poor visibility.

Correct Answer: A

Rationale: The correct procedure for inserting a nasogastric (NG) tube involves measuring the tube to ensure the appropriate length for insertion and using lubrication to reduce discomfort and aid in smooth insertion. Choice B is incorrect as measuring the tube is essential for proper placement. Choice C is incorrect as lubrication helps in easing the insertion process. Choice D is incorrect as checking the placement comes after insertion and should not be done simultaneously with the insertion process.